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为研究气泡雾化细水雾灭火的机理和影响因素,利用自行研制的气泡雾化细水雾系统进行了以汽油油盘火为火源的灭火试验,改变气泡雾化细水雾喷头的压力和流量,记录不同工况下的灭火时间、火焰温度、辐射热和火焰形态的变化,对气泡雾化细水雾的灭火过程进行分类,分析各类灭火过程的主要灭火机理和压力与流量对灭火有效性的影响规律。结果表明,气泡雾化细水雾针对汽油油盘火具有良好的火火效果,其灭火过程可分为瞬时灭火、短时间灭火和长时间灭火3种类型,每种类型的灭火过程有不同的主要灭火机理。
In order to study the mechanism and influencing factors of bubble atomized water mist fire extinguishing, bubble fire atomization water mist was used as fire source to change the pressure And the flow rate, the change of fire extinguishing time, flame temperature, radiant heat and flame shape under different working conditions were recorded, the fire extinguishing process of bubble atomized water mist was classified, and the main fire extinguishing mechanism and pressure and flow rate of each kind of fire extinguishing process were analyzed Effect of fire extinguishing effectiveness. The results show that bubble atomized water mist has good fire effect for gasoline oil pan fire. The fire extinguishing process can be divided into three types: instant fire extinguishing, short fire extinguishing and long time fire extinguishing. Each type of fire extinguishing process has different The main mechanism of fire.